Therapeutic potential of Coumarin-polyphenolic acid hybrids in PD: Inhibition of α-Syn aggregation and disaggregation of preformed fibrils, leading to reduced neuronal inclusion formation,Bioorganic & Medicinal Chemistry Letters

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Therapeutic potential of Coumarin-polyphenolic acid hybrids in PD: Inhibition of α-Syn aggregation and disaggregation of preformed fibrils, leading to reduced neuronal inclusion formation
Bioorganic & Medicinal Chemistry Letters ( IF 2.5 ) Pub Date : 2024-01-12 , DOI: 10.1016/j.bmcl.2024.129618
Zhen-Ping Wang ₁ , Wei Zhang ₁ , Li-Zi Xing ₁ , Ya-Dong Zhao ₁ , Ji Xu ₂ , Yun-Xiao Zhang ₁

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This study focuses on the discovery of new potential drugs for treating PD by targeting the aggregation of α-Syn. A series of hybrids combining Coumarin and phenolic acid were designed and synthesized. Four particularly promising compounds were identified, showing strong inhibitory effects with IC values ranging from low micromolar to submicromolar concentrations, as low as 0.63 μM. These compounds exhibited a higher binding affinity to α-Syn residues and effectively hindered the entire aggregation process, maintaining the proteostasis conformation of α-Syn and preventing the formation of β-sheet aggregates. This approach holds significant promise for PD prevention. Additionally, these candidate compounds demonstrated the ability to break down preformed α-Syn oligomers and fibrils, resulting in the formation of smaller aggregates and monomers. Moreover, the candidate compounds showed impressive effectiveness in inhibiting α-Syn aggregation within nerve cells, thereby reducing the likelihood of α-Syn inclusion formation resembling Lewy bodies, which highlights their potential for treating PD.

中文翻译：

香豆素-多酚酸混合物在 PD 中的治疗潜力：抑制 α-Syn 聚集和预形成原纤维解聚，从而减少神经元包涵体形成

本研究的重点是通过靶向 α-Syn 的聚集来发现治疗 PD 的新的潜在药物。设计并合成了一系列香豆素和酚酸的杂化物。鉴定出四种特别有前景的化合物，显示出强大的抑制作用，IC 值范围从低微摩尔浓度到亚微摩尔浓度，低至 0.63 μM。这些化合物对α-Syn残基表现出更高的结合亲和力，有效阻碍整个聚集过程，维持α-Syn的蛋白质稳态构象并防止β-折叠聚集体的形成。这种方法对于预防帕金森病具有重大前景。此外，这些候选化合物表现出分解预先形成的 α-Syn 低聚物和原纤维的能力，从而形成更小的聚集体和单体。此外，候选化合物在抑制神经细胞内 α-Syn 聚集方面表现出令人印象深刻的有效性，从而降低了类似路易体的 α-Syn 包涵体形成的可能性，这凸显了它们治疗 PD 的潜力。

更新日期：2024-01-12

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